Who amongst the following lives on the 4th floor?

As per the given above question , we have
P, Q, R, S, T, V and W are sitting in a straight line facing north. Each one of them lives on a different floor in the same building which is numbered from one to seven. Q sits fourth to the left of the person living on the 6th floor. W lives on the 3rd floor. The person living on the 1st floor sits third to right of S. S is not an immediate neighbor of W. Only one person lives between T and the person who lives on the 2nd floor. P and R are immediate neighbours of each other. P does not live on the 6th floor.
From figure it is clear that S amongst the following lives on the 4th floor .